| King DEDEDE vs King | 8–4 | 66.67% |
| King DEDEDE vs Dragunov | 8–1 | 88.89% |
| King DEDEDE vs Bryan | 6–2 | 75.00% |
| King DEDEDE vs Hwoarang | 5–2 | 71.43% |
| King DEDEDE vs Lars | 6–1 | 85.71% |
| King DEDEDE vs Law | 5–1 | 83.33% |
| King DEDEDE vs Kazuya | 6–0 | 100.00% |
| King DEDEDE vs Raven | 3–3 | 50.00% |
| King DEDEDE vs Nina | 2–3 | 40.00% |
| King DEDEDE vs Eddy | 3–2 | 60.00% |
| King DEDEDE vs Lidia | 5–0 | 100.00% |
| King DEDEDE vs Zafina | 3–1 | 75.00% |
| King DEDEDE vs Jun | 2–2 | 50.00% |
| King DEDEDE vs Xiaoyu | 3–0 | 100.00% |
| King DEDEDE vs Asuka | 1–2 | 33.33% |
| King DEDEDE vs Lili | 1–2 | 33.33% |
| King DEDEDE vs Reina | 3–0 | 100.00% |
| King DEDEDE vs Steve | 2–0 | 100.00% |
| King DEDEDE vs Feng | 0–2 | 0.00% |
| King DEDEDE vs Leo | 1–1 | 50.00% |
| King DEDEDE vs Alisa | 2–0 | 100.00% |
| King DEDEDE vs Lee | 2–0 | 100.00% |
| King DEDEDE vs Heihachi | 2–0 | 100.00% |
| King DEDEDE vs Clive | 1–1 | 50.00% |
| King DEDEDE vs Paul | 1–0 | 100.00% |
| King DEDEDE vs Yoshimitsu | 0–1 | 0.00% |
| King DEDEDE vs Jin | 1–0 | 100.00% |
| King DEDEDE vs Devil Jin | 1–0 | 100.00% |
| King DEDEDE vs Claudio | 1–0 | 100.00% |
| King DEDEDE vs Leroy | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.